<!-- 2017-7-30 20:28:25 |  -->
<div class="btn-group append_test">
    <button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown">
        <span class="fa fa-globe"></span>append插件示例
    </button>
    <ul class="dropdown-menu">
        <li><a href="#">菜单1</a></li>
        <li><a href="#">菜单2</a></li>
        <li><a href="#">菜单3</a></li>
        <li role="separator" class="divider"></li>
        <li><a href="#">菜单4</a></li>
    </ul>
</div>